Sequence based uplink control channel coexistence

A method for wireless communication at a base station, comprising:

• transmitting, to a first user equipment (UE), a configuration signal indicating a codebook construction configuration for the first UE to use for constructing a codebook of sequences for conveying a first type of uplink payload in a resource block that is orthogonal to a second type of uplink payload transmitted from a second LTE:
• receiving, the first type of uplink payload in the resource block from the first UE and the second type of uplink payload in the resource block from the second UE;
• demultiplexing the first type of uplink payload from the second type of uplink payload;
• constructing the codebook of sequences for the first type of uplink payload according to the codebook construction configuration;
• and
• decoding the first type of uplink payload based at least in part on the codebook of sequences,
• wherein said constructing the codebook of sequences according to the codebook construction configuration comprises:
• generating an orthogonal sequence pool by mapping resource elements associated with the orthogonal sequence pool in the physical domain to resource elements in a virtual domain;
• constructing a virtual codebook of sequences according to the mapping;
• converting uplink payload data into an integer corresponding to a first sequence from the virtual codebook of sequences;
• mapping the first sequence to a plurality of virtual resource elements in the virtual domain;
• and
• mapping the plurality of virtual resource elements in the virtual domain to a plurality of physical resource elements of the resource block in a physical domain for transmitting the first type of uplink payload in the resource block.

An apparatus for wireless communication at a first user equipment (UE), comprising:

• a processor, and
• memory, coupled with the processor, including
• instructions executable by the processor to cause the apparatus to:
• receive a configuration signal indicating a codebook construction configuration for constructing a codebook of sequences for conveying a first type of uplink payload in a resource block that is orthogonal to a second type of uplink payload transmitted from a second UE in the resource block;
• construct the codebook of sequences for the first type of uplink payload according to the codebook construction configuration;
• generate the first type of uplink payload for transmission using a first sequence from the codebook of sequences;
• and
• transmit the first type of uplink payload in the resource block, wherein the first type of uplink payload is multiplexed in the resource block with the second type of uplink payload from the second UE,
• wherein the instructions executable by the processor to cause the apparatus to construct the codebook of sequences according to the codebook construction configuration comprise instructions executable by the processor to cause the apparatus to:
• generate an orthogonal sequence pool by mapping resource elements associated with the orthogonal sequence pool in the physical domain to resource elements in a virtual domain;
• construct a virtual codebook of sequences according to the mapping;
• convert uplink payload data into an integer corresponding to a first sequence from the virtual codebook of sequences:
• map the first sequence to a plurality of virtual resource elements in the virtual domain;
• and
• map the plurality of virtual resource elements in the virtual domain to a plurality of physical resource elements of the resource block in a physical domain for transmitting the first type of uplink payload in the resource block.

An apparatus for wireless communication at a base station, comprising:

• a processor, and
• memory, coupled with the processor, including
• instructions executable by the processor to cause the apparatus to:
• transmit, to a first user equipment (UE), a configuration signal indicating a codebook construction configuration for the first UE to use for constructing a codebook of sequences for conveying a first type of uplink payload in a resource block that is orthogonal to a second type of uplink payload transmitted from a second UE;
• receive, the first type of uplink payload in the resource block from the first UE and the second type of uplink payload in the resource block from the second UE;
• demultiplex the first type of uplink payload from the second type of uplink payload;
• construct the codebook of sequences for the first type of uplink payload according to the codebook construction configuration;
• and
• decode the first type of uplink payload based at least in part on the codebook of sequences,
• wherein the instructions executable by the processor to cause the apparatus to construct the codebook of sequences according to the codebook construction configuration comprise instructions executable by the processor to cause the apparatus to:
• generate an orthogonal sequence pool by mapping resource elements associated with the orthogonal sequence pool in the physical domain to resource elements in a virtual domain;
• construct a virtual codebook of sequences according to the mapping;
• convert uplink payload data into an integer corresponding to a first sequence from the virtual codebook of sequences;
• map the first sequence to a plurality of virtual resource elements in the virtual domain;
• and
• map the plurality of virtual resource elements in the virtual domain to a plurality of physical resource elements of the resource block in a physical domain for transmitting the first type of uplink payload in the resource block.